Hi Dan, Could you post a better picture of the bracket on the PS cooler ? something looks funky with the bracket, like someone mentioned it may be the type that mounts on the compressor (71 and up...) Here's a pic of the correct 428 PS cooler from the 428CJ registry site....( Hope Scott doesn't mind)
The 70 Boss 302 cooler is the same as pictured except it has two real short pipes at the bottom instead of one long and one shorter pipe like the 428/Boss429 part. The 69 Boss 302 cooler is the same as the 428/429 part but the long and short pipes on the base are switched.
The 7AA pulley is listed as a replacement for the 428 w/AC pulley ( AF marked) but both were used on a bunch of other applications (a lot of 390 stuff)
The throttle cable is the same for V8 apps (except Boss 429) but that looks like a production part so that's kinda tough to find ( I'd verify the length to be sure it's Mustang)
Not sure on the AC bracket till I pull out some and eyeball them...
Hope this helps, John